Maeie cheveemont



M40HVREM0NT.

SASH FASTENBR' Patented July 3, 1884- H Il NirED STATES PATENT OiEEicE.

l MARIE GHVREMONT, OF VVASHINGTONY, DISTRICT OF COLUMBIA.

sAsH-FASTENER.

SPECIFICATION orming'part of Letters Patent No. 301,804, dated July 8, 18,84.

Application filed May 17, 1884. (No model.)

To all whom/t may concern.:

Beit known that I, MARIE GHEvEEMoN'r, a citizen of the Republic of France, and a-resident of the city of Washington, in the District of Columbia, have invented certain new and useful Improvements in Locks or Fasteners for VVindow-Sashes; and Il do hereby declare that the following is a full, clear, and exact description of the invention,whieh will enable others has been applied.` Fig. 2 is a vertical sectional view taken through the lower end of the window frame and sash; and Fig. 3 is a perspective view showing my invention in position, parts of the window-frame having been broken away in order to better illustrate the device. p

The same lettersrefer to the same parts' in all the figures.

This invention relates to locks or fasteners for window-sashes; and it has for its object to produce a device which shall enablethe window-sash to be easily raised and sustained at any desired position, and in which provision shall be made for locking the sash in any position to which it may be adjusted.

To this end the invention consists in the improved construction and arrangement of parts, which will be hereinafter fully described, and particularly pointed out in the claim.

A designates the window-sash,which is provided with a groove, B, formed in one of its sides or edges, and adapted to receive a metallic bar or strip, C,` which is provided with a series of upwardly inclined or-beveled notches, D D. The window frame or casing is provided at any suitable point with a recess oropening, E, inwhich is pivoted a disk, F, having an outwardly-extending tongue or cam, G, adapted to engage anyone of the notches D in the strip C. The latter may extend lug or cam G back into the recess E, thus enabling the sash to be raised tothe required height. Vhen this has been attained and the sash is released. the cam G will, by its own gravity, drop back into the notch D, with which 'it registers at the time. The disk F is mounted upon a shaft, H, which extends through the-window frame or casing, and is provided with a handle, I, by means of which it may be conveniently turned. I would have it understood, however, that the said handle may be detachable from the stem or axle, so as to forma detachable key, by means of which the disk maybe manipulated, as will be presently described.

J is a latch or bolt sliding in asuitable recess .formed in the window frame or casing,

and'y adapted to engage an opening, K, in the disk `or sash-fastener F, against which it is forced by the action of a suitably-arranged spring, Ii.

I have already rstated how the window-sash may be raised and sustained at any desired elevation. It will be seen, however, ythat before this can be done it will be necessary to withdraw the bolt or latch .I sufficiently to release the cam-disk F. When the sash has been adj usted at the desired position, and the cam drops into engagement with one of the notches D, the bolt .I will automatically engage the opening K, thereby locking the disk in position, and preventing the position of the sash from being changed until the bolt or latch is again Withdrawn.

It is vfrequently desirable to adj ust-windowsashes to such a position that ventilation shall IOO Thus, for instance, the strip C, instead of being provided with the beveled notches D,

might be simply serrated vor corrugated, in which case, of course, the cani G of the disk F would have to be correspondingly modified, so as to present a simple tooth adapted to en- 5 gage the strip. I would also state that the device may be applied to either side of the sash or to both sides.

Having thus described my invention, I clai 1n and desire to secure by Letters Patent of the 1o United States- In a sash-iastencr, the combination of the gravtating cam-disk pivoted in the Windowframe7 having an outwardly-extending tongue or cam, G, an eccentric perforation, and a handle or key for turning it, the spring-latch 15 adapted to be forced into the perforation in the cam-disk, and the notched or serrated strip embedded in the side rail of the sash7 as and for the purpose shown and set forth.

In testimony that I claim the foregoing as 2o my own I have hereunto aiiixed my signature in presence of two witnesses.

MARIE CHEVREMONT. Witnesses:

LoUrs BAGGER, WM. SECHER. 

